RT Journal Article
T1 Symmetrical interfacial reconstruction and magnetism in La_(0.7)Ca_(0.3)MnO_(3)/YBa_(2)Cu_(3)O_(7)/La_(0.7)Ca_(0.3)MnO_(3) heterostructures
A1 Nemes, Norbert Marcel
A1 Rocci, Mirko
A1 León Yebra, Carlos
A1 Santamaría Sánchez-Barriga, Jacobo
AB We have analyzed the interface structure and composition of La_(0.7)Ca_(0.3)MnO_(3)/YBa_(2)Cu_(3)O_(7)/La_(0.7)Ca_(0.3)MnO_(3) trilayers by combined polarized neutron reflectometry, aberration-corrected microscopy, and atomic column resolution electron-energy-loss spectroscopy and x ray absorption with polarization analysis. We find the same stacking sequence at both top and bottom cuprate interfaces. X-ray magnetic circular dichroism experiments show that both cuprate interfaces are magnetic with a magnetic moment induced in Cu atoms as expected from symmetric Mn-O-Cu superexchange paths. These results supply a solid footing for the applicability of recent theories explaining the interplay between magnetism and superconductivity in this system in terms of the induced Cu spin polarization at both interfaces.
PB American Physical Society
SN 1098-0121
YR 2011
FD 2011-08-23
LK https://hdl.handle.net/20.500.14352/44563
UL https://hdl.handle.net/20.500.14352/44563
LA eng
NO © 2011 American Physical Society.  Artículo firmado por 15 autores.  Work at UCM was supported by Spanish MICINN Grant No. MAT 2008 06517, Consolider Ingenio CSD2009-00013 (IMAGINE), CAM S2009-MAT 1756 (PHAMA), and the European Research Council Starting Investigator Award, Grant No. 239739 STEMOX. Argonne National Laboratory’s work was supported by the U.S. Department of Energy, Office of Science, under Contract No. DE-AC02-06CH11357. This work has benefited from the use of the Lujan Neutron Scattering Center at LANSCE, which is funded by the Department of Energy’s Office of Basic Energy Sciences. Los Alamos National Laboratory is operated by Los Alamos National Security LLC under DOE through Contract No. DE-AC52-06NA25396. Work at ORNL (M.V. and S.J.P.) was supported by the Office of Science, Materials Sciences and Engineering Division of the U.S. Department of Energy.
NO Unión Europea. FP7
NO Ministerio de Ciencia e Innovación (MICINN)
NO European Research Council Starting Investigator Award
NO U.S. Department of Energy, Office of Science
NO Los Alamos National Security LLC
NO Office of Science, Materials Sciences and Engineering Division of the U.S. Department of Energy.
DS Docta Complutense
RD 9 abr 2025